http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2707136-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 |
| filingDate | 1977-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e9ad441e359eb5292ee830fcdc031d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00b6e4da99932555ad0f54f055ac24b9 |
| publicationDate | 1978-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2707136-A1 |
| titleOfInvention | METHOD OF MANUFACTURING POLYESTERS |
| abstract | A polyester of inherent viscosity at least 0.5 (pref. at least 0.7) is obtd. by reacting at 275-375 (pref. 330-360) degrees C, a mixt. of 60-35 (pref. 60-40) mole % terephthalic acid and 40-65 (pref. 40-60) mole % isophthalic acid and a hydroquinone deriv. of the formula: (where R is alkyl, aromatic or alicyclic and X is 1-4C alkyl, Cl or Br). The polyester has apparent melt viscosity (10,000 poise) low enough to be prepd. in commercial gravity flow reactors. Methyl-hydroquinone diacetate, terephthalic acid and isophthalic acid are reacted at 340 degrees C to give a polyester of inherent viscosity >1.20. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0358147-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0358147-A2 |
| priorityDate | 1977-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.